Investigating the effect of spark plug and wire health on gasoline engine exhaust emissions

Document Type : Original Article

Authors
Mehdi Niajalili
Sobhan Rezaei
Ali Kochakinejad
Masoumnezhad Mojtaba
Department of Mechanical Engineering, National University of Skill (NUS), Tehran, Iran.
10.22034/stme.2025.481475.1079
Abstract
Nowadays, the issue of environmental pollution is one of the major challenges in densely populated cities. In the meantime, due to the prominent role of the automobile as one of the largest producers of pollution, it is very important to examine the equipment effective in producing its pollutants. Considering the effect of spark plug and wire quality on the production of engine exhaust pollutants, research has been conducted on the effect of the lifespan of this equipment on the production of engine exhaust pollutants. In this study, the main goal is to examine the effect of using spark plugs and wires with different functions on the emissions of automobile engines. Thus, spark plugs are considered in four groups including zero to 10, 10 to 20, 20 to 30 and 30 to 40 thousand kilometers and wires are considered in two ranges of zero to 20 and 20 to 40 thousand kilometers. At each stage, after installation on the vehicle, toxic pollutants emitted from the engine, including HC, CO, and NOx, have been examined. According to the studies conducted, the production of all three pollutant gases has a direct impact on the operation of the spark plug and wire. However, the depreciation of the vehicle's spark plug has the greatest impact on the pollutant gas HC, and the maximum increase in emissions in the study groups was reported to be 51.8%, 13.8%, and 32% for HC, CO, and NOx gases, respectively.
Keywords
Pollutant
Ignition system
Spark plug
Environment
Engine
Subjects
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  • Receive Date 02 October 2024
  • Revise Date 05 January 2025
  • Accept Date 12 January 2025
  • First Publish Date 12 January 2025
  • Publish Date 12 January 2025